Answer:
this is really hard let me finish my test and ill get back to you
<span>The limbic system is a collective term for a group of nuclei, tracts, and cortical areas lying beneath the neocortical surface that covers the brain and that surrounds the thalamus at the core of the forebrain.</span>
Actually cell can get big but they are smart enough to stay small and live off lots of small food, and there isn't enough food for them to live off of (if this is wrong i apologize)
Health food and vaccine injection killed virus and bacteria . sports encouraged